Reviewed · ZADAR SEA KAYAKING & SUP
Kayaking on Upper Mreznica River – Slunj, Croatia
One paddling stroke and you’re already in a waterfall canyon. Kayaking the Upper Mreznica River near Plitvice is a hands-on, outdoorsy day: you glide through pools, pop over drops, and pass up to 15 travertine waterfalls with a guide watching the whole time. It’s close to Plitvice (about 30 minutes) and even doable if you’re starting from Zagreb.
What I love most is the mix of action and calm. The start and finish bring the big moments—waterfall drops, jumps, and sliding down natural sections—while the middle lets you paddle slower and take in the river.
My only real caution: the trip’s speed and vibe depend on the exact group and timing. One account notes a larger group and a long stretch before reaching the water, so it’s worth choosing your departure date wisely and expecting a bit of waiting on the first legs.
In This Review
- Quick key points
- Where the Upper Mreznica fits on a Plitvice itinerary
- Meeting at Kupa Sports and why the transfers matter
- The 3-hour flow: action up front, easy paddling in the middle
- Getting on the water: first waterfalls and first decisions
- The main stretch: up to 15 waterfalls and warm pools
- The calmer middle: paddling with the river, not fighting it
- Finishing: back to dry clothes, fast
- What you’ll actually do at the waterfalls (not just watch)
- Safety, guides, and the human touch that changes everything
- Equipment and what to wear so you’re comfortable
- Value check: is $65.33 a fair deal?
- Who this kayaking trip is best for
- Small-group size: why it matters when waterfalls are involved
- Weather and river conditions: the one factor you can’t cheat
- Should you book kayaking on the Upper Mreznica River?
- FAQ
- How long is the kayaking experience on the Upper Mreznica?
- How much does the tour cost?
- Is the activity suitable for beginners?
- What is the minimum age for children?
- What’s included in the price?
- What should I bring or wear?
- What happens if the weather is poor?
Quick key points

- Up to 15 waterfalls along a travertine river full of pools you can swim in (and sometimes kayak through)
- Beginner-friendly enough for first-timers, with help at the trickier drops
- Guided transfers from the meeting base so you’re not stuck planning local transport
- Equipment included, plus neoprene suits if needed, so you travel light
- Small-group experience with a maximum of 20 people
- Action-focused format with about 3 hours total time on the water and around the stops
Where the Upper Mreznica fits on a Plitvice itinerary
This kayaking stretch is in the wider Plitvice Lakes region, but it feels like its own world. You’ll be on the Mreznica River, which is famous for its waterfalls and warm, inviting pools between them. The operator positions it as a day that’s short enough to pair with Plitvice Lakes itself—without turning your schedule into a travel math problem.
If you’re coming from Zagreb, you’re looking at roughly 1.5 hours each way. If you’re already based near Plitvice Lakes, you’re about 30 minutes from the river base. That matters because it makes this activity feel like part of your day, not something that eats your whole vacation.
The setting also helps: this isn’t just a slow paddle past scenery. The river has enough structure—drops, rapids, and waterfalls—that you’ll actually do things: ride sections, jump when it’s offered, swim in places where conditions allow, and get pulled along by the current at the right moments.
More paddling, from the Zrmanja canyon to the sea caves by kayak and SUP.
- Kayaking Mreznica Waterfalls close to Plitvice Lakes
★ 5.0 · 205 reviews - Kayaking on Upper Mreznica River – Slunj, Croatia
★ 5.0 · 178 reviews - Kayaking at the Mreznica Canyon
★ 5.0 · 162 reviews - Kayaking Adventure on Mreznica River close to Plitvice Lakes
★ 5.0 · 113 reviews
Meeting at Kupa Sports and why the transfers matter

You meet at Kupa Sports – Rafting & Kayaking base Mreznica, located at Tržič Tounjski 91, Tounj (47264), Croatia. Expect a straightforward arrival. You’ll get your safety gear and a quick explanation of paddling and what to do when you reach the waterfalls.
Here’s what makes this logistics part genuinely valuable: you don’t have to figure out how to get to the start of the river on your own. After gear and instructions, the group drives to where the paddling begins. That removes the “bus, shuttle, and wrong stop” headache—especially if you’re using a single rental car or staying in Plitvice-area towns with limited public transport.
It’s also a confidence booster. When the guide is already controlling the flow—gear first, then the river start—you waste less time and you feel less like you’re improvising outdoors for the first time.
The 3-hour flow: action up front, easy paddling in the middle

The trip is set up like a river best-of—big moments at the beginning and end, with a calmer middle section so your arms can recover and your eyes can drink in the canyon.
Getting on the water: first waterfalls and first decisions
After you drive to the starting point, the river quickly shows its personality. You’ll pass waterfall areas in a few different ways, depending on conditions and how the group is progressing:
- Riding down drops or sections in the kayaks
- Hitting natural water slides where the river does the work for you
- Jumping into the lower pool when the guide offers it
- Walking around certain cascades if riding them isn’t the move for your comfort level
This matters because the river experience isn’t one single trick repeated. You get variety, and you also get options. If you’re newer to kayaking, the guide can steer you toward choices that keep you safe while still giving you the thrill.
The main stretch: up to 15 waterfalls and warm pools
The core of the ride focuses on travertine waterfalls—the river has about 15 along the route, and the highest is listed as 8 meters. Between many of them are pools that can feel like natural refresh zones. That’s where the “wild canyon” aspect becomes practical: you’re not just looking at waterfalls; you’re moving through a sequence of pools and drops where you can cool off and reset.
And yes, the company describes parts that can feel like light canyoning: water-slide rides and jump opportunities from some waterfall spots. You won’t be forced into anything beyond what the guide says is safe for your group.
The calmer middle: paddling with the river, not fighting it
In the middle section, you’ll get more peaceful paddling. This is the part where you can slow down, practice your strokes, and notice details: the different-colored pools, the way water changes around travertine, and how the current pulls you after a drop.
If you’ve ever been on a tour where every second is frantic, this is a relief. Your body gets a break. Your brain gets to enjoy the fact that you’re outside in Croatia, not trapped on a schedule.
Finishing: back to dry clothes, fast
When you reach the finish, you don’t just end and wander. You’ll quickly drive back to the base so you can change into dry clothes. One review also highlighted having a changing room and a place to rest, which is exactly what you want after a wet, active few hours.
It’s the small comfort of having a plan after the fun.
What you’ll actually do at the waterfalls (not just watch)

This kayaking route is built around the idea that the river is the attraction. Up to 15 waterfalls aren’t there as decoration. You’ll interact with them.
In practical terms, the guide may help you through the more physical sections, especially where a drop affects how you land and paddle away. One account praised how the guide keeps attention on the group continuously—helping at the drops when needed, then stepping back so you can do it on your own if you’re ready.
You’ll also get moments that feel more playful than “sport.” Swimming, rock-jumping, and kayaking below waterfalls all show up in the experience description. Whether you personally choose the jump option depends on comfort and water conditions, but the opportunity is part of what makes this more than a gentle paddle.
The highest point (listed as 8m) is the kind of detail that helps you understand the intensity level. This isn’t a kiddie river. But the guide system and included equipment keep it realistic for people joining for the first time.
Safety, guides, and the human touch that changes everything

The safety setup here is simple: safety gear is included, and you’ll receive instructions before you start. Then the guide stays involved while you’re on the river.
The standout name in the experience notes is Dennis (also spelled Denis in one place), and there’s mention of Alex helping as well. That pairing comes through in the way people describe the guides: patient instruction, active supervision, and guidance without micromanaging.
I like this style because it hits the sweet spot:
- You get the confidence to try the tricky bits.
- You don’t feel left alone at the edge of a drop.
- You also don’t spend the entire trip being hauled around like luggage.
One review specifically mentioned feeling safe during rapids and rock jumping. Another emphasized how the guide was attentive in the waterfall moments while still letting confident paddlers do their own moves. That’s the difference between a tour that’s only scenic and one that actually feels like a guided adventure.
Equipment and what to wear so you’re comfortable

The tour provides all necessary equipment. That includes the kayak setup and safety gear. If conditions call for it, you’ll also get a neoprene suit—this is important because it affects comfort and how willing you’ll feel about getting wet.
What you should think about is simple:
- Wear clothing that won’t feel miserable if you get soaked.
- Bring shoes or swim footwear that can handle water.
- Plan on a wet-to-dry transition when you return to the base.
The tour ends with changing into dry clothes, which is a big part of why this works as a half-day activity. You’re not stuck in soaked gear for the rest of your sightseeing.
Also, there’s mention of the option to buy drinks at the base or along the way. It’s not listed as included, so if you want water or soda during downtime, treat it as an on-site add-on rather than a guaranteed part of the package.
Value check: is $65.33 a fair deal?

At $65.33 per person for about 3 hours, you’re not paying just for the kayak. You’re paying for:
- Equipment
- A licensed guiding team
- All fees and taxes
- Local transfers (so you don’t have to solve transport yourself)
You’re also paying for time efficiency. Since the route starts after gear and a drive, you get to a river entry point without spending your day on logistics. For many people, that alone is worth money—especially if your base is near Plitvice and you don’t want extra driving.
What’s not included is also straightforward: lunch, bottled water, photos, and anything like tips. If you want a full meal, you’ll need to plan that around the half-day format. If you want bottled water, assume it’s on you (or purchase it if it’s available on-site).
One practical budgeting tip: if you’re doing this and also visiting Plitvice Lakes, plan a meal before or after based on the time you expect to be dry again.
Who this kayaking trip is best for

This tour is marketed as beginner-friendly, and the details back that up. It’s described as suitable for people who may be trying kayaking for the first time, and children from age 6 are welcome.
That makes it a strong pick for:
- Families who want an outdoor adventure without a full-day commitment
- Couples looking for shared thrill without extreme training
- Solo travelers who still want structure and guidance
- First-timers who don’t want to rent gear and guess their way through river sections
One couple-type review mentioned being happy they drove in from as far as Split, and that the tandem kayaks were comfortable. If you’re a pair sharing a kayak, you can expect a setup designed for stability—not a “let’s see if you two can balance” situation.
Small-group size: why it matters when waterfalls are involved
The activity caps at 20 travelers. That’s a big deal on a waterfall river because too many people at once slows down how the guide can manage turns, spacing, and safety checks.
Not everyone has the same group experience. One account calls out that the group felt bigger than other trips seen on the river and that the leader wasn’t as engaged. That’s a reminder that the same route can feel different depending on day and group size.
If you’re sensitive to crowds, it’s worth treating this as an activity you schedule intentionally—ideally on a date that’s likely to be calmer for your personal preference.
Weather and river conditions: the one factor you can’t cheat
This experience requires good weather. If the weather turns poor, the operator will offer a different date or a full refund. That’s not just a “rules” thing; kayaking on a waterfall river is weather-sensitive.
So when you’re deciding when to go, use common sense:
- If rain is heavy and persistent, expect changes or cancellations.
- If conditions are borderline, be ready for the operator to adjust.
The good part is that the rules are clearly tied to weather—so you’re not gambling without a safety net.
Should you book kayaking on the Upper Mreznica River?
I’d book this if you want a short, guided water adventure that actually uses the river’s highlights. The combination of equipment included, licensed guides, local transfers, and the chance to interact with up to 15 waterfalls is hard to beat for the time.
I’d think twice if:
- You’re extremely crowd-sensitive and want maximum spacing at every waterfall.
- You hate any waiting around at the start (some accounts noted extra travel time before reaching the water).
- You’re looking for a quiet, no-surprises nature paddle. This river includes drops, jumps, and active sections.
If you’re in the mood for real outdoors time near Plitvice—and you want a guide (like Dennis and Alex) who helps you through the harder bits—this is a strong choice.
FAQ
How long is the kayaking experience on the Upper Mreznica?
It’s about 3 hours total.
How much does the tour cost?
The price is $65.33 per person.
Is the activity suitable for beginners?
Yes. The tour is described as suitable for beginners.
What is the minimum age for children?
Children from age 6 are welcome.
What’s included in the price?
You get use of necessary equipment, all fees and taxes, local transfers, and licensed guides.
What should I bring or wear?
You’ll receive safety gear, and neoprene suits if necessary. You should still wear swim-friendly clothes and plan on getting wet, since you’ll have chances for swimming and jumping.
What happens if the weather is poor?
The experience requires good weather. If it’s canceled due to poor weather, you’ll be offered a different date or a full refund.
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